\begin{table}[tbp] \centering
\newcolumntype{C}{>{\centering\arraybackslash}X}

\caption{Entropy Balancing.}\label{tab:entropy}
\begin{tabularx}{\linewidth}{lCCCC}

\toprule
& \multicolumn{2}{c}{Before balancing} & \multicolumn{2}{c}{After balancing} \\ \cmidrule(lr){2-3} \cmidrule(lr){4-5} \addlinespace[-2ex] \tabularnewline
{}&{Treated}&{Control}&{Treated}&{Control} \tabularnewline
\midrule \addlinespace[\belowrulesep]
WW1 awards per capita (i.h.s.)&0.064&0.050&0.064&0.064 \tabularnewline
&(0.104)&(0.077)&(0.104)&(0.119) \tabularnewline
log 1930 population&9.643&10.009&9.643&9.643 \tabularnewline
&(1.134)&(0.877)&(1.134)&(1.095) \tabularnewline
1930 unemployment rate&0.064&0.054&0.064&0.064 \tabularnewline
&(0.042)&(0.038)&(0.042)&(0.044) \tabularnewline
1930 urban status dummy&0.515&0.578&0.515&0.515 \tabularnewline
&(0.500)&(0.494)&(0.500)&(0.500) \tabularnewline
1930 farm share&0.463&0.522&0.463&0.463 \tabularnewline
&(0.214)&(0.233)&(0.214)&(0.224) \tabularnewline
1929 farm income (i.h.s.)&2.991&3.200&2.991&2.991 \tabularnewline
&(0.803)&(0.609)&(0.803)&(0.761) \tabularnewline
Mean Democratic vote share: 1898--1928&43.033&55.773&43.033&43.035 \tabularnewline
&(14.583)&(19.807)&(14.583)&(15.212) \tabularnewline
1930 share of men&0.525&0.509&0.525&0.525 \tabularnewline
&(0.024)&(0.016)&(0.024)&(0.028) \tabularnewline
1930 share of blacks&0.036&0.186&0.036&0.036 \tabularnewline
&(0.093)&(0.218)&(0.093)&(0.080) \tabularnewline
1930 share of Japanese&0.001&0.000&0.001&0.001 \tabularnewline
&(0.004)&(0.004)&(0.004)&(0.006) \tabularnewline
1930 share of Germans&0.060&0.029&0.060&0.060 \tabularnewline
&(0.058)&(0.054)&(0.058)&(0.079) \tabularnewline
1930 share of Italians&0.009&0.008&0.009&0.009 \tabularnewline
&(0.023)&(0.024)&(0.023)&(0.024) \tabularnewline
1930 share of veterans&0.124&0.105&0.124&0.124 \tabularnewline
&(0.038)&(0.031)&(0.038)&(0.045) \tabularnewline
log 1939 average wage&6.488&6.343&6.488&6.488 \tabularnewline
&(0.290)&(0.356)&(0.290)&(0.343) \tabularnewline
War contracts per capita (i.h.s.)&0.316&0.320&0.316&0.316 \tabularnewline
&(0.633)&(0.574)&(0.633)&(0.601) \tabularnewline
\bottomrule \addlinespace[\belowrulesep]

\end{tabularx}
\begin{flushleft}
\footnotesize \noindent \textit{Notes:} Difference in covariates in counties above and below  median New Deal grants per capita (i.h.s.). Columns 1--2: averages before re-weighting. Columns 3--4: average after re-weighting with the formula of \citet{hainmueller2012entropy}
\end{flushleft}
\end{table}
